<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card>
      <el-alert title="消息提示的文案" type="info" center show-icon :closable="false"> </el-alert>
      <el-steps :space="200" :active="activeinfo - 0" finish-status="success" align-center="">
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form :model="addFrom" :rules="addFromrules" ref="addruleForm" label-width="100px" label-position="top">
        <el-tabs :tab-position="'left'" v-model="activeinfo" :before-leave="beforeleave" @tab-click="tabclick">
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addFrom.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addFrom.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addFrom.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addFrom.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addFrom.goods_cat"
                :options="catelist"
                :props="{ expandTrigger: 'hover', label: 'cat_name', value: 'cat_id', children: 'children' }"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item :label="item.attr_name" v-for="item in manytable" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox border :label="cb" v-for="(cb, i) in item.attr_vals" :key="i"></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item :label="item.attr_name" v-for="item in onlytable" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload :action="upload" :on-preview="handlePreview" :on-remove="handleRemove" list-type="picture" :headers="headersobj" :on-success="onsuccess">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor v-model="addFrom.goods_introduce"></quill-editor>
            <el-button type="primary" size="small" class="quillbutt" @click="addshangp">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <!-- 图片对话框 -->
    <el-dialog title="提示" :visible.sync="previewVisible" width="50%">
      <img :src="prviewPath" alt="" class="imgtupian" />
    </el-dialog>
  </div>
</template>

<script>
  import { Form } from 'element-ui'
  export default {
    data() {
      return {
        activeinfo: '0',
        addFrom: {
          goods_name: '',
          goods_price: 0,
          goods_weight: 0,
          goods_number: 0,
          goods_cat: [],
          pics: [],
          goods_introduce: '',
          attrs: []
        },
        addFromrules: {
          goods_name: [{ required: true, message: '请输入商品名称', trigger: 'blur' }],
          goods_price: [{ required: true, message: '请输入商品价格', trigger: 'blur' }],
          goods_weight: [{ required: true, message: '请输入商品重量', trigger: 'blur' }],
          goods_number: [{ required: true, message: '请输入商品数量', trigger: 'blur' }],
          goods_cat: [{ required: true, message: '请选择商品分类', trigger: 'blur' }]
        },
        catelist: [],
        manytable: [],
        onlytable: [],
        upload: 'http://43.138.104.150:8888/api/private/v1/upload',
        headersobj: { Authorization: window.sessionStorage.getItem('token') },
        prviewPath: '',
        previewVisible: false
      }
    },
    created() {
      this.Catelist()
    },
    methods: {
      async Catelist() {
        const { data: res } = await this.$http.get('categories')

        if (res.meta.status != 200) {
          return this.$message.error('获取列表失败')
        }
        this.catelist = res.data
      },
      handleChange() {
        if (this.addFrom.goods_cat.length !== 3) {
          this.addFrom.goods_cat = []
        }
      },
      beforeleave(aa, bb) {
        if (bb !== '0' && this.addFrom.goods_cat.length !== 3) {
          return this.$message.error('请先选择商品分类')
          return false
        }
      },
      async tabclick() {
        if (this.activeinfo === '1') {
          const { data: res } = await this.$http.get(`categories/${this.catchid}/attributes`, { params: { sel: 'many' } })

          res.data.forEach((item) => {
            item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
          })
          this.manytable = res.data
        }
        if (this.activeinfo === '2') {
          const { data: res } = await this.$http.get(`categories/${this.catchid}/attributes`, { params: { sel: 'only' } })
          if (res.meta.status != 200) {
            return this.$message.error('静态失败')
          }
          this.onlytable = res.data
        }
      },
      handlePreview(a) {
        this.prviewPath = a.response.data.url
        this.previewVisible = true
      },
      handleRemove(a) {
        const remoa = a.response.data.tmp_path
        const i = this.addFrom.pics.findIndex((x) => x.pic === remoa)
        this.addFrom.pics.splice(i, 1)
      },
      onsuccess(a) {
        const picdata = { pic: a.data.tmp_path }
        this.addFrom.pics.push(picdata)
      },
      addshangp() {
        this.$refs.addruleForm.validate(async (valid) => {
          if (!valid) {
            return this.$message.error('缺少必要的信息')
          }
          this.addFrom.goods_cat = this.addFrom.goods_cat.join(',')
          this.manytable.forEach((item) => {
            const newinfo = { attr_id: item.attr_id, attr_value: item.attr_vals.join(',') }
            this.addFrom.attrs.push(newinfo)
          })
          this.onlytable.forEach((item) => {
            const newinfo = { attr_id: item.attr_id, attr_value: item.attr_vals }
            this.addFrom.attrs.push(newinfo)
          })
          const { data: res } = await this.$http.post('goods', this.addFrom)
          if (res.meta.status != 201) {
            return this.$message.error('添加失败')
          }
          this.$message.success('添加成功')
          this.$router.push('/goods')
        })
      }
    },
    computed: {
      catchid() {
        if (this.addFrom.goods_cat.length === 3) {
          return this.addFrom.goods_cat[2]
        }
        return null
      }
    }
  }
</script>

<style lang="less" scoped>
  .el-checkbox {
    margin: 0 5px 0 0 !important;
  }
  .imgtupian {
    width: 100%;
    height: 100%;
  }
  /deep/ .ql-editor {
    height: 377px !important;
  }
  .quillbutt {
    margin-top: 15px;
  }
</style>
